从谷歌注册验证电子邮件地址 - flutter

Question

我尝试向现有帐户添加多重身份验证，该帐户已使用 google 登录。

我收到错误“首先验证电子邮件”：

[SmsRetrieverHelper] 短信验证码请求失败：未知状态码：17086 需要先验证电子邮件，然后再注册第二个要素。

所以看来我必须验证谷歌电子邮件地址。 我的问题是我是否必须通过电子邮件和密码登录再次验证用户身份。与： final credential = EmailAuthProvider.credential(email: emailAddress, password: password);

然后链接谷歌和电子邮件身份验证提供商，如下所述：

https://firebase.google.com/docs/auth/flutter/account-linking?authuser=0

或者我是否必须使用“电子邮件链接身份验证”，如此处所述：

https://firebase.google.com/docs/auth/flutter/email-link-auth?authuser=0

或者有没有一种完全不同的、更简单的方法来验证谷歌帐户的电子邮件地址？

使用的代码：

final GoogleSignIn googleSignIn = GoogleSignIn();

Future<UserCredential> signInWithGoogle(BuildContext context) async {
  // Trigger the authentication flow
  final GoogleSignInAccount? googleUser = await (googleSignIn.signIn());

  // Obtain the auth details from the request
  final GoogleSignInAuthentication? googleAuth = await googleUser?.authentication;

  // Create a new credential
  final credential = GoogleAuthProvider.credential(
    accessToken: googleAuth?.accessToken,
    idToken: googleAuth?.idToken,
  );

  // Once signed in, return the UserCredential
  final UserCredential authResult = await FirebaseAuth.instance.signInWithCredential(credential);

  String? name = authResult.user?.displayName;
  final String? email = authResult.user?.providerData[0].email ;
  final String? imageUrl = authResult.user?.photoURL;

  //Only taking the first part of the name, i.e., First Name
  if (name!.contains(" ")) {
    name = name.substring(0, name.indexOf(" "));
  }

  print(name);
  print(email);
  print(imageUrl);
  print(authResult.user?.emailVerified);

  return authResult;
}

Answer 1

var cred = await signInWithGoogle();
var user = cred.user!;
print(user);

signInWithGoogle

功能可从 Firebase 文档中复制/粘贴到

在网络上使用 Google 登录

:

Future<UserCredential> signInWithGoogle() async {
  // Create a new provider
  GoogleAuthProvider googleProvider = GoogleAuthProvider();

  googleProvider.addScope('https://www.googleapis.com/auth/contacts.readonly');
  googleProvider.setCustomParameters({
    'login_hint': '[email protected]'
  });

  // Once signed in, return the UserCredential
  return await FirebaseAuth.instance.signInWithPopup(googleProvider);

  // Or use signInWithRedirect
  // return await FirebaseAuth.instance.signInWithRedirect(googleProvider);
}

此处可运行版本：

https://zapp.run/edit/auth-is-google-auto-verified-zrw06uvrx06?file=lib/main.dart

当我选择我的 Gmail 帐户时，它会在

Logs

面板中显示我的电子邮件已通过验证：

用户（显示名称：Frank van Puffelen，电子邮件：[email protected]，

电子邮件验证：true

，isAnonymous：false，元数据：...

当您运行相同的示例时，它是否将

emailVerified

显示为

false

？